Shaft-hanger



128.8811888 May 28', 1888.

EFE d (No Model.) N C. GROWELL SHAFT HANGER.

No. 278,804.l A

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l UNIT-ED" 4STATESPrJItaNT OFFICE.

IIILEN c. ceownnn, on ERIE, PENNSYLVANIA.

SHAFT-HANGER.

SPECIFICATION forming part.` of Letters Patent No. 278,404, dated-May29, 1883.

Application tiled September 18. 1882. (No model.)

,To all whom it may concern:

Be it known that I, HILEN C. UROWELL, a citizen of the United States,residing at Erie, inthe county of Erie and State of Pennsylvaniamhaveinvented certainnew and useful Improvements in ShaftHangers; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention,.such as will enable others skilled in the art to whichit ap- 1o pertains to make and use the same.

This invention relates to what are` known as shaft-hangers 5 and itconsists in new and useful improvements in the construction ofthe same,which will fully appear in thefol- `1 5 lowing description and claims.

The invention is illustrated in the accompanying drawings, as follows:

" Figurel is a vertical section through the hanger on a linetransversely to the shaft.

i `2o Iiiig.` 2 is a vertical section on a linelongitudinal with theshaft. Fig. 3 is a perspective view of the box. Fig. 4 is a perspectiveview j of one of the bearing-blocks C. Fig. 5 is a fragment of thehangerA, showing the opening for the screw D, with parts broken away,

so as to show construction.

. A is the hanger-frame; Al A', an enlargement of the frame, formingopenings for the screw by which the box is adjusted vertically.

i 3io B B' is the journal-box. C C are bearingblocks, which lie betweenthe vertical adjusting-screws and the journal-box. D Dl are the verticaladjusting-screws, and d d are the lateral adjusting-screws. i Otherparts will be re- "3 5 ferred to in proper connection in the followinggeneraldescription and claims.

The construction of the box andthe manner of adjusting it are similar tothat shown in a previous application `by the present inventor;

i *40p but the construction of the screws by which the box is adjustedvertically and the devices connecting said screws with the box, and theconstruction of the frame to receive and operate said screws, and themeans provided for lockingfsaid screws whenthe proper adjustmentis had,constitute the essential features of this invention, and are as follows:

The frame A is cast with the openings A' A' cored out, and on the innerwall of these y y '5o openings are formed in the castingscrew` threads aa on one side of the opening. These screw-threads are simply a series oflugs having the proper pitch and spaced so as to form segments ot' ascrew-thread. `Un the wall op posite these lugs a a is cored "out arecess, in .55 which a bearing-plate, a', can be adjusted.` A screw, e,is tapped through the wall into this recess and operates against thebearing-plate.

The screws D Dvare quite large, and are formed of cast metal. They aremade so as to 6o work easily and freely in the threaded openings A A.When they have been adjusted' so as to properly hold the box they arelocked in .place by the screw e, which acts as a setscrw or jam-screw,the bearing-plate a' sim- 65 ply serving to give a largerbearing-surface, and ot' course it can be dispensed with, if desired;but its use is preferred because the screw will then not damage thethread. on the sciiews. 'Ihese screws DD swivel onto bear- 7o ing-blocksC C, which are placed between them i and the box. The bearing-surfacesof these blo'cks are curved inwardly, so as to fit upon thecurved-backed bosses b b on the box and permit free lateral adjustmentof the box by 75 the screws d d', and at the same time allow the box toturn vertically therein as -in a journalbox, and being swiveled in thescrewsD D by the pin c', they permita horizontal pivotal movement of thebox, thus forming a univer- 8o sal joint for the box.

l am aware that shaft-hangers have been provided with verticalopeningsfor shaft-adjusting screws, each held in place by a setscrewhaving a segmental screw-thread upon 8 5 its end, which corresponds withthe thread on the shaft-adjusting screw, 'but am not aware that `saidopenings have been provided with screw-threads which support the side ofand form a bearing for the shaft-adjustin g screw 9o opposite to that incontact with the set-screw.

1. In a-shaft-hanger, the frame A, havingv openings A' -A cored therein,with screwthreads formed on the walls thereof, in combination withscrews D D', set-screws e e, and the swiveled bearing-blocks `(l G.

2. In a shaft-hanger, the frame A, having openings A A' cored therein,with the segments of screw-threads eta formed therein, loroo cated aboveand below the shafbline, adjust?, ing-serews-D D', placed within saidopenings and provided with swiveled bearing-blocks C C, withinwardly-curved bearing-faces, setscrews e e, adjusted as shown withrelation to said screws D D', in.goinbinabigngwighthebbox B B',having-bosses b b upon its upper and lower surface, substantially as andfor the purposes set forth. i

3. A shaft-hanger-franle having adjustingserew openings A cored therein,with segopening, and a,jam-screw.adjusted"nol operate A

